// GitHub

dotnet/winforms

[main] Source code updates from dotnet/dotnet

Open

Open PR "[main] Source code updates from dotnet/dotnet" (#15239)
on 07 October 2026 by dotnet-maestro[bot]

[release/10.0] Source code updates from dotnet/dotnet

Open

Open PR "[release/10.0] Source code updates from dotnet/dotnet" (#15238)
on 07 October 2026 by dotnet-maestro[bot]

Restore Clipboard compatibility and harden OLE data handling

Open

Open PR "Restore Clipboard compatibility and harden OLE data handling" (#15237)
on 06 October 2026 by Shyam-Gupta

 Add exhaustive Clipboard API unit tests 

Open

Open PR " Add exhaustive Clipboard API unit tests " (#15236)
on 06 October 2026 by Shyam-Gupta

[release/9.0] Update branding to 9.0.22

Merged or Closed

Closed or merged PR "[release/9.0] Update branding to 9.0.22" (#15234)
on 06 October 2026 by dotnet-release-bot[bot]

[release/8.0] Update branding to 8.0.33

Merged or Closed

Closed or merged PR "[release/8.0] Update branding to 8.0.33" (#15235)
on 06 October 2026 by dotnet-release-bot[bot]

[release/10.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/10.0] Source code updates from dotnet/dotnet" (#15225)
on 06 October 2026 by dotnet-maestro[bot]

[release/9.0] Update branding to 9.0.22

Merged or Closed

Closed or merged PR "[release/9.0] Update branding to 9.0.22" (#15233)
on 06 October 2026 by dotnet-release-bot[bot]

[release/8.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document

Open

Open PR "[release/8.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document" (#15232)
on 06 October 2026 by aerworker

[release/9.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document

Open

Open PR "[release/9.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document" (#15231)
on 06 October 2026 by aerworker

[release/10.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document

Open

Open PR "[release/10.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document" (#15230)
on 06 October 2026 by aerworker

Fix processing component with PropertyTabAttribute and PropertyTabScope.Document

Open

Open PR "Fix processing component with PropertyTabAttribute and PropertyTabScope.Document" (#15229)
on 06 October 2026 by aerworker

[release/11.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document

Open

Open PR "[release/11.0] Fix processing component with PropertyTabAttribute and PropertyTabScope.Document" (#15228)
on 06 October 2026 by aerworker

A component with PropertyTabAttribute and PropertyTabScope set to "Document" does not add a property tab.

Open

Open issue "A component with PropertyTabAttribute and PropertyTabScope set to "Document" does not add a property tab." (#15227)
on 06 October 2026 by aerworker

`System.Drawing.Drawing2D.Matrix.Transform*(ReadOnlySpan)` methods mutate the `ReadOnlySpan`

Open

Open issue "`System.Drawing.Drawing2D.Matrix.Transform*(ReadOnlySpan)` methods mutate the `ReadOnlySpan`" (#15226)
on 06 October 2026 by rickbrew

[release/10.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/10.0] Source code updates from dotnet/dotnet" (#15224)
on 05 October 2026 by dotnet-maestro[bot]

Keep COM test composition variable alive through end of scope.

Merged or Closed

Closed or merged PR "Keep COM test composition variable alive through end of scope." (#15223)
on 02 October 2026 by mmitche

[release/11.0] Fix inverted NoClientNotifications check in Control.AccessibilityNotifyClients

Merged or Closed

Closed or merged PR "[release/11.0] Fix inverted NoClientNotifications check in Control.AccessibilityNotifyClients" (#15222)
on 01 October 2026 by github-actions[bot]

[release/10.0] Fix inverted NoClientNotifications check in Control.AccessibilityNotifyClients

Merged or Closed

Closed or merged PR "[release/10.0] Fix inverted NoClientNotifications check in Control.AccessibilityNotifyClients" (#15216)
on 01 October 2026 by github-actions[bot]

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15221)
on 01 October 2026 by dotnet-maestro[bot]

[dnceng-bot] Branch `winforms/release/8.0` can't be merged to Azdo internal branch

Open

Open issue "[dnceng-bot] Branch `winforms/release/8.0` can't be merged to Azdo internal branch" (#15220)
on 01 October 2026 by dotnet-mirroring[bot]

[release/8.0] Update dependencies from dotnet/arcade

Merged or Closed

Closed or merged PR "[release/8.0] Update dependencies from dotnet/arcade" (#15219)
on 01 October 2026 by dotnet-maestro[bot]

[main] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[main] Source code updates from dotnet/dotnet" (#15217)
on 01 October 2026 by dotnet-maestro[bot]

Let each platform declare the TYMEDs it supports so WPF can provide enhanced metafiles

Open

Open PR "Let each platform declare the TYMEDs it supports so WPF can provide enhanced metafiles" (#15218)
on 01 October 2026 by justinswork

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15215)
on 30 September 2026 by dotnet-maestro[bot]

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15214)
on 30 September 2026 by dotnet-maestro[bot]

Regression: Bitmap finalized during Image.Save(Stream, ImageFormat) leaks native GDI+ memory

Open

Open issue "Regression: Bitmap finalized during Image.Save(Stream, ImageFormat) leaks native GDI+ memory" (#15213)
on 30 September 2026 by avendel

Fix issue 15210: DomainUpDown and NumericUpDown allow height changes in VisualStylesMode.Net11 instead of reverting to the original height

Open

Open PR "Fix issue 15210: DomainUpDown and NumericUpDown allow height changes in VisualStylesMode.Net11 instead of reverting to the original height" (#15212)
on 30 September 2026 by SimonZhao888

[main] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[main] Source code updates from dotnet/dotnet" (#15211)
on 30 September 2026 by dotnet-maestro[bot]

DomainUpDown and NumericUpDown allow height changes in VisualStylesMode.Net11 instead of reverting to the original height

Open

Open issue "DomainUpDown and NumericUpDown allow height changes in VisualStylesMode.Net11 instead of reverting to the original height" (#15210)
on 30 September 2026 by Olina-Zhang